نتایج جستجو برای: index cases
تعداد نتایج: 1033739 فیلتر نتایج به سال:
In this paper, the effect of pressure, temperature and impurity on the energylevels, binding energy, linear and nonlinear optical properties of a modified Gaussianquantum dot are studied. In this regard, the finite element method is employed to solvethe single electron Schrodinger equation in the effective mass approximation with andwithout impurity at the center of the dot. In addition, the en...
background: definite data regarding the incidence and distribution of renal tumours in eastern india is not known. for better management, as it is essential to identify patients with poor prognosis, prognostic factors like stage, nuclear grade and their relationship to molecular markers are also unclear in this region. the purpose of our study was to assess the spectrum of adult renal tumours w...
the evaluation of matching in a case-control study of colorectal cancer using general practice lists
background: a crucial part of a case-control study is the selection of a sample of controls that represent the base-population from which cases were drawn. controls may be matched to cases by one or more potentially important confounding variables, such as socioeconomic status. in the united kingdom, one method for control selection has been based on the patient list of the general practice ...
Here, we report the findings from the first 2 years of an arbovirus surveillance study conducted in Machala, Ecuador, a dengue-endemic region (2014-2015). Patients with suspected dengue virus (DENV) infections (index cases, N = 324) were referred from five Ministry of Health clinical sites. A subset of DENV-positive index cases (N = 44) were selected, and individuals from the index household an...
BACKGROUND Neither clinical prediction models nor noninvasive imaging tests that detect coronary artery calcification identify all patients who experience acute coronary events. Variations in culprit plaque morphology may account for these inaccuracies. METHODS AND RESULTS We compared the 10-year Framingham risk index, histologic coronary calcification, and culprit plaque morphology in 79 con...
OBJECTIVES The primary objective of this retrospective study was to determine the prevalence of leprosy in families, and the secondary objective was to study the clinicoepidemiological features of leprosy in families. RESULTS There were a total of 901 cases of leprosy who attended our leprosy centre during this 18 year period. There were 49 cases of leprosy in this group whose family members ...
BACKGROUND Seventeen cases of locally acquired measles occurred in South Western Sydney and Sydney local health districts between July and October 2011. Three of the cases were known to have at least one dose of measles-mumps-rubella (MMR) vaccine. Seven cases were infected within a health care setting waiting room by five index cases. Current national protocols require follow-up of all suscept...
BACKGROUND Cholera remains an important public health challenge globally. Several pandemics have occurred in different parts of the world and have been epidemiologically linked by different researchers to illustrate how the cases were spread and how they were related to index cases. Even though the risk factors associated with the 2014 cholera outbreak were investigated extensively, the link be...
BACKGROUND Understanding of the effects of human immunodeficiency virus (HIV) infection and antiretroviral treatment (ART) on Mycobacterium tuberculosis transmission dynamics remains limited. We undertook a cross-sectional study among household contacts of smear-positive pulmonary tuberculosis (TB) cases to assess the effect of established ART on the infectiousness of TB. METHOD Prevalence of...
BACKGROUND Previous estimates of the survival times of patients with alpha 1-antitrypsin deficiency have been based on selected patients. METHODS The survival times of 397 patients with severe alpha 1-antitrypsin deficiency identified by pulmonary impairment (index cases) or through family studies (non-index cases) were compared. RESULTS The overall median survival time was 54.5 years with ...
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